/*
* JBoss, Home of Professional Open Source
* Copyright 2007, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.dependency.plugins;
import java.security.AccessController;
import java.security.PrivilegedAction;
import org.jboss.dependency.spi.ControllerContext;
import org.jboss.dependency.spi.dispatch.InvokeDispatchContext;
import org.jboss.logging.Logger;
/**
* SecurityActions.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 1.1 $
*/
class SecurityActions
{
/** The logger */
private static final Logger log = Logger.getLogger(SecurityActions.class);
private static ClassLoader setContextClassLoaderInternal(final ControllerContext context)
{
ClassLoader result = Thread.currentThread().getContextClassLoader();
if (context instanceof InvokeDispatchContext)
{
ClassLoader cl = null;
InvokeDispatchContext invokeContext = (InvokeDispatchContext) context;
try
{
cl = invokeContext.getClassLoader();
}
catch (Throwable t)
{
if (log.isTraceEnabled())
log.trace("Not setting classloader for " + context.getName() + " reason:" + context);
}
if (cl != null)
Thread.currentThread().setContextClassLoader(cl);
}
return result;
}
static ClassLoader setContextClassLoader(final ControllerContext context)
{
if (System.getSecurityManager() == null)
{
return setContextClassLoaderInternal(context);
}
else
{
return AccessController.doPrivileged(new PrivilegedAction<ClassLoader>()
{
public ClassLoader run()
{
return setContextClassLoaderInternal(context);
}
});
}
}
static void resetContextClassLoader(final ClassLoader classLoader)
{
if (System.getSecurityManager() == null)
{
Thread.currentThread().setContextClassLoader(classLoader);
}
else
{
AccessController.doPrivileged(new PrivilegedAction<Object>()
{
public Object run()
{
Thread.currentThread().setContextClassLoader(classLoader);
return null;
}
});
}
}
}